Apparatus for scouring or equalizing warp or weft threads.



No. 643,390. Patented Feb. 13, I909.

W. G. ANDRIESSEN.

APPARATUS FOR SCOURING 0R EHUALIZING WARP 0R WEFT THRTEADS.

(Application filed Mar. 3, 1899A (No Model.)

THE NORRIS PETERS co. FHOTO-LITHD-, wAsHmuToN, q. c.

\VILHELM GUSTAV ANDRIESSEN, OF CREFELD, GERMANY.

APPARATUS FOR SCOURING OR EQUALIZING WARP 0R WEFT THREADS.

SPECIFICATION forming part of Letters Patent No. 643,390, dated February13, 1900. Application filed March 3,1899, Serial No. 707,640. (Nomodel.)

To (0Z5 whom it may concern:

Be it known that I, WILHnLM GUSTAV AN- DRIESSEN, a subject of theEmperor of Germany, and a resident of Crefeld, in the Elm pire ofGermany, have invented certain new and useful Improvements inApparatuses for Securing or Equalizing Warp or Weft Threads in lVovenFabrics, of which the following is a specification.

This invention relates to an improved apparatus which may be used withweavers looms for the purpose of scouring or equalizing the warp andWeft threads of silk and half-silk fabrics in such a manner on the100111 that their position to one another becomes equal. There arealready different arrangements for use with looms for scouringfabrics-as, for instance, those of the German Patents Nos. 90,230,94,332, and 98,729; but all these known arrangements have the fault thatthey scour the weft-thread but little or not at all, while by thepresent arrangement both the warp and the weft threads are scoured withone and the same scouring-knife. In the present invention this isobtained by means of a scouring-knife which is given a to-and-fromovement and operates on the under side of the fabric and which ismounted at an angle of about forty-five degrees to the length directionof the fabric; but in order not to damage the fabric on its longitudinaledges or selvages when the knife passes un der the same an arrangementis provided for lifting the edge of the fabric when introducing theknife.

The annexed drawings represent a form of the apparatus shown as anexample.

Figure 1 is a front view of the apparatus, showing the drivingmechanism. Fig. 2 is a side view of Fig. 1. Fig. 3 shows an enlargedview of the knife-carriage and the device for lifting the edge of thefabric. Fig. 4 is a plan View of the knife-carriage.

On the guide-bar 9, arranged on the frame of the loom underneath thefabrics travel, a carriage 10 is arranged, movable to and fro, whichtravels on the guide-bar by its rolls 11. This carriage carries thescouring-knife 13, fastened in cheeks 12, the top end of the knife whichoperates on the fabric being turned or twisted at an angle of aboutforty-five degrees to the length direction of the latter. The carriage10 is moved to and fro as follows: By a shaft-for instance, the shaft14-and under the action of beveled toothed wheels 15, a crank 16, anddriving-rod 17 a toothed se ment 18 is given a rocking movement. Thesegment engages with a toothed wheel 20 on a shaft 19. On the shaft 19is a pulley 21, which carries a cord or chain 22 or the like. The cord22 or the like is guided around rollers 23 and is connected at its endsat 24: with the carriage 10. If, therefore, the crank 16 is put intorotation by the driving device 15 and the segment 18 is thereby given aswinging movement, the pulley 21 turns alternately in the forward and inthe backward direction, so that the carriage 10 moves to and fro and theknife 13 scours the fabric 25.

The device for lifting the edges, as shown in Figs. 1 and 3, is arrangedas follows: A quadrant 33 is pivoted on the carriage 10 and its are 34presses under the fabric. On the guide-bar 9 a hook 36 is pivoted at 27and held in its normal position by a spring 28 and a pin 29. Thequadrant 33 is provided with a shoulder 35, which on the outwardmovement of the carriage moves under the hook 36, but which at theentrance of the carriage is caught by the hook, as shown in Fig. 3, sothat the are 34 lifts the fabric edge 32. When the carriage has movedfarther on in the direction shown by the arrow, then the are 34 isbrought to the position shown in dotted lines, and when the carriagearrives at the other end of the guide-bar the are 34 is returned againby a similar hook for the purpose of lifting the other web edge in asimilar manner.

Instead of the scouring-knife being bent to about forty-five degrees aknife arranged in the carriage 10 and movable around its axis can beused.

Naturally the above-described arrangement can be mounted and usedseparate froma loom.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

1. An apparatus for scouring or equalizing the warp and weft threads ofwoven fabrics such as silk and half-silk fabrics comprising a guide-bar,a carriage mounted on the guidebar, and a knife having its edge arrangedobliquely to the length of the fabric, and means whereby the carriage ismoved to and fro; 5 substantially as described.

2. The combination of the guide-bar having hooks pivoted thereto nearits ends, a carriage mounted on the guide-bar, means for reciprocatingthe carriage, a knife fixed to the car- IO riage, and a quadrant forlifting the edge of the fabric, having an arc and a shoulder at the sidethereof, and pivoted to the carriage; the hooks being positioned toengage the shoulder of the quadrant for reversing the latter as thecarriage returns; substantially I 5 as described.

In Witness whereof I have hereunto set my hand in presence of twoWitnesses.

WILHELM GUSTAV ANDRIESSEN. Witnesses:

G. ANDRIESSEN, M. KLEMPER.

